How does carbon capture work?

Another carbon capture method involves passing exhaust gasses through chemicals that pull out the CO2, according to the University of Strathclyde in the U.K. [source: University of Strathclyde, UK]. In this process, flue gasses from a power plant go through a filterlike "scrubber" containing an industrial solvent like Selexol. The solvent greedily sucks up the CO2 and then the solution passes through a heat source, boiling off the solvent and leaving the pure, liquid CO2 behind.